Here is the full list of all 18 Force of Nature achievements.
Beat the game in Hardcore mode
Beat the game
Grow 1500 wheats
Sleep 10 times
Kill 2500 enemies
Grow 500 roses
Grow 100 sunflowers
Kill 20 rabbits
Kill 1000 goblins
Cut down 1000 trees or bushes
Die 10 times
Destroy 100 rocks
Run 42km
Die first time
Eat 100 coconuts or bananas
Get Force of Nature shard
Kill 15 goblins
Get level 2